The game uses two standard decks of cards. Goal of the game to remove all the cards. To do this, create a vertical or horizontal sequence of cards of the same rank. Sequence of more than three cards will be removed. To move the card tap it and then tap empty cell. The card will be moved and the other two will be added from the deck (if you have not created a sequence of four cards).

This image is a schematic representation, not a screenshot from the game. Screenshots are platform specific. You can see screenshots in the store.